Mounted Ball Bearing Number of Bolts 4 Corrosion Resistant with USDA-H1 Grease Series Bore Dia 1-3/16 In. Ball Bearing Type Steel Bearing Material PBT Housing Material Set Screw Locking Type Mounting Hole Center 83mm Overall Height 38.1mm Overall Width 107mm Overall Length 107mm Bolt Hole Size 11mm Ball Bearing Insert Dynamic Load Capacity 3 750 lb. Static Load Capacity 2 030 lb. Temp Range -4 Degrees to 230 Degrees F White